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25878006006 = 234313001001
BaseRepresentation
bin11000000110011100…
…110000100011110110
32110210111000220121220
4120012130300203312
5410444232143011
615515503251210
71604165264436
oct300634604366
973714026556
1025878006006
11aa7a506a26
1250225a9b06
1325953cbcb8
141376c1a2c6
15a16d07506
hex6067308f6

25878006006 has 8 divisors (see below), whose sum is σ = 51756012024. Its totient is φ = 8626002000.

The previous prime is 25878005983. The next prime is 25878006013. The reversal of 25878006006 is 60060087852.

It is a sphenic number, since it is the product of 3 distinct primes.

25878006006 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2156500495 + ... + 2156500506.

It is an arithmetic number, because the mean of its divisors is an integer number (6469501503).

Almost surely, 225878006006 is an apocalyptic number.

25878006006 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25878006006 is a wasteful number, since it uses less digits than its factorization.

25878006006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4313001006.

The product of its (nonzero) digits is 161280, while the sum is 42.

The spelling of 25878006006 in words is "twenty-five billion, eight hundred seventy-eight million, six thousand, six".

Divisors: 1 2 3 6 4313001001 8626002002 12939003003 25878006006